PENGARUH JARI-JARI KELENGKUNGAN HORISONTAL BALOK TEPI BETON BERTULANG TERHADAP BEBAN DAN LENDUTAN

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ABSTRACT:
During  this  time  civil  engineers  design  horizontally  curved  reinforced  beam  in  field  using  straight  beams approach.  The  design  codes  of  horizontally  curved  reinforced  concrete  beam didn’t  exist  in  SK  SNI  T-15-1991-03  and ACI but there is code about horizontally curved steel i.e AASHTO Guide Specifications for Horizontally Curved Highway Bridges  (1980).  This  research  follows  up  the  research  that  has  been  done  by  Hsu  (1974)  about  intersection  structure between straight spandrel and floor beam. The speciment which were used in this research were straight spandrel beam and  spandrel  beam  with  horizontally  curvature  3,3147  m  (curved8  spandrel  beam)  and  4,80695  m  (curved12  spandrel beam) and  1 every speciment. Loading was done on floor beam statically with increment 1 kN gradually. The support on spandrel  beam  is  hinge but  torsionally  fixed  and  on  floor beam  is  hinge  too.  To  investigate  behavior  of  spandrel  beam speciments hence LVDT, inclinometer, strain gauge are installed. The results of research are displacement on first crack load  higher  if  spandrel  beams  are  curved.  Displacement  on  quarter  span  are  displacement  curved8  spandrel  beam  >curved12 > straight. Tension bending reinforcement are yield.
Keywords:  nonlinear,  spandrel beam, horizontally curved reinforced concrete beam
Penulis: Mahmud Kori Effendi
Kode Junal: jptsipildd080007

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Jp Teknik Sipil dd 2008